Abstract: A manufacturing method of a semiconductor device includes at least the following steps. A sacrificial substrate is provided. An etch stop layer is formed on the sacrificial substrate. A portion of the etch stop layer is oxidized to form an oxide layer between the sacrificial substrate and the remaining etch stop layer. A capping layer is formed on the remaining etch stop layer. A device layer is formed on the capping layer. A first etching process is performed to remove the sacrificial substrate. A second etching process is performed to remove the oxide layer. A third etching process is performed to remove the remaining etch stop layer. A power rail is formed on the capping layer opposite to the device layer.

Abstract: In some embodiments, the present disclosure relates to an integrated circuit (IC) in which a memory structure comprises an inhibition layer inserted between two ferroelectric layers to create a tetragonal-phase dominant ferroelectric structure. In some embodiments, the ferroelectric structure includes a first ferroelectric layer, a second ferroelectric layer overlying the first ferroelectric layer, and a first inhibition layer disposed between the first and second ferroelectric layers and bordering the second ferroelectric layer. The first inhibition layer is a different material than the first and second ferroelectric layers.

Abstract: A magnetoresistive random access memory (MRAM) device includes a first array region and a second array region on a substrate, a first magnetic tunneling junction (MTJ) on the first array region, a first top electrode on the first MTJ, a second MTJ on the second array region, and a second top electrode on the second MTJ. Preferably, the first top electrode and the second top electrode include different nitrogen to titanium (N/Ti) ratios.

Abstract: A manufacturing method of a semiconductor device includes at least the following steps. A sacrificial substrate is provided. An epitaxial layer is formed on the sacrificial substrate. An etch stop layer is formed on the epitaxial layer. Carbon atoms are implanted into the etch stop layer. A capping layer and a device layer are formed on the etch stop layer. A handle substrate is bonded to the device layer. The sacrificial substrate, the epitaxial layer, and the etch stop layer having the carbon atoms are removed from the handle substrate.

Abstract: The device for a LED direct driver comprises a major LED string, a minor LED string set, a pre-regulator, and a direct driver. The major LED string has multiple series-connected LED diodes which has a first end and a second end. The minor LED string set has a first end and a second end, and is formed with multiple series-connected minor strings. The first end of the minor LED string set is connected to the second of the major LED string. Each minor LED string has at least one LED diode. The direct driver is connected to the pre-regulator, the major LED string, and the minor LED string, which is configured to short out selected minor LED strings for ensuring the most efficient LED driving configuration. The pre-regulator provides a regulated voltage output. The regulated voltage output fed to the LED direct driver allows the LED direct driver to provide a constant power output with virtually no output power ripple.

Abstract: A controlling method for an electrical apparatus and a device thereof are provided in the present invention. The method includes the steps of: (a) providing an electrical apparatus and an AC power; (b) generating a control signal synchronized to the AC power; and (c) controlling the electrical apparatus by the control signal. The device includes a threshold detector, a phase-locked loop coupled to the threshold crossing detector and an output circuit coupled to the phase-locked loop.

Abstract: A method for controlling multiple appliances powered by a common DC bus, comprising acts providing a controller connected to the common DC bus with multiple appliances, wherein the multiple appliances are connected in parallel; the controller embedding a command by interrupting an AC input voltage for generating a modulated AC voltage, wherein the command comprises an instruction; providing a converter connected to the controller that converts the modulated AC voltage to a modulated DC voltage, wherein the modulated DC voltage has a ripple voltage; the appliances receiving the command embedded in modulated DC voltage from the common DC bus; and the appliances executing the instruction when the command is verified.

Abstract: An approach is provided for devices and methods for using high efficiency ballasted lamps with an electronic transformer, especially for the replacement of traditional halogen lamps from the existing fixtures. The method comprises acts of synchronizing a reference signal to a voltage corresponding to an AC voltage from an AC power source, and driving a load at a predetermined duty cycle. Therefore, the present disclosure is able to drive a load with a desired average output power lower than the minimum load requirement of the electronic transformer yet still allow the electronic transformer to work properly.

Abstract: The present invention relates to power reforming methods and associated multiphase lights, especially to power reforming methods and associated multiple lights that selectively turn ON and OFF to reform current to follow voltage appropriately, which provides better heat dissipation, improving power factor and color mixing capability. The method comprises acts of rectifying an AC voltage to a pulsating DC voltage, synchronizing an internal time base signal to the pulsating DC voltage, setting pulse duration in a pulse period and turning ON and OFF of an electronic device. The device comprises at least two loads, a rectifier, at least two drivers and a controller.

Abstract: A lift chair includes a seat portion formed therein with an accommodating room that is closed atop by a plane; a cushion deposited on the plane; a lifter mechanism deposited in the accommodating room and having an upper end connected to a bottom of the cushion; and a power source serving to drive the lifter mechanism to operate, thereby lifting or lowering the cushion, horizontally moving the cushion, or tilting the cushion, and in turn assisting a user to stand up or sit down.

Abstract: An approach is provided for devices and methods for using high efficiency ballasted lamps with an electronic transformer, especially for the replacement of traditional halogen lamps from the existing fixtures. The method comprises acts of synchronizing a reference signal to a voltage corresponding to an AC voltage from an AC power source, and driving a load at a predetermined duty cycle. Therefore, the present disclosure is able to drive a load with a desired average output power lower than the minimum load requirement of the electronic transformer yet still allow the electronic transformer to work properly.

Abstract: The present invention relates to a Light Emitting Diode (LED) selection circuit for an LED driver that drives multiple unequal lengths of LED strings, which selectively turns the LED strings ON and OFF corresponding to an input alternating current (AC) line voltage. The LED driver provides optimal efficiency as input AC line voltage varies from low to high voltages (i.e. 90V to 150V for nominal 120 VAC operation and 190V to 250V for nominal 220 VAC operation). Thus The LED driver can be used internationally since it accepts voltages from virtually every industrialized country in the world. The LED selection circuit in accordance with the present invention comprises a rectifier, multiple LED strings, multiple current sources and a controller. The controller generates multiple signals to the corresponding current source and turns ON and OFF the LED strings.

Abstract: The present invention relates to a capacitance reducing method for a pulsed activated device and associated devices, especially to a pulsed activated device having a capacitor, which improves power factor as well as eliminating the need for large capacitance. The method comprises acts of rectifying an AC voltage to a pulsating DC voltage, sensing a zero-crossing point of the pulsating DC voltage, synchronizing the pulsating DC voltage, setting pulse duration in a pulse period and turning ON and OFF of a pulsed activated device. The device comprises a load, a rectifier, a capacitor, a driver, a controller and an optional PFC circuit.

Abstract: A lift chair includes a seat portion formed therein with an accommodating room that is closed atop by a plane; a cushion deposited on the plane; a lifter mechanism deposited in the accommodating room and having an upper end connected to a bottom of the cushion; and a power source serving to drive the lifter mechanism to operate, thereby lifting or lowering the cushion, horizontally moving the cushion, or tilting the cushion, and in turn assisting a user to stand up or sit down.

Abstract: The present invention relates to a pulse-width modulation (PWM) control device, especially to a PWM control device for use with a TRIode for an Alternating Current (TRIAC) dimmer. The PWM control device is comprised of a load, a rectifier, a PWM control module and a PWM controllable ballast. The load may be a gas discharge lamp, a motor, a heating device or a light emitting diode lamp. The rectifier is connected to a power module and rectifies a truncated sinusoidal voltage from the power module to a pulsating truncated direct current (DC) voltage. The PWM control module is connected to the power module and the rectifier and generates a PWM control signal. The PWM controllable ballast is driven by a boost circuit and is controlled by the PWM control signal that limits current to a proper value for the load.

Abstract: An approach is provided for a power factor compensating method to compensate other electronic devices that use a common power source in order to improve power factor from the perspective of a power company. The other electronic device is a type of a non-linear load, and the method enables a compensator to receive a supply voltage from the power source commonly connected to the traditional electronic devices and disables a load of the compensator for a period. The period corresponds to a range that makes an overall supply current more proportional to the supply voltage.

Abstract: The configurations of a light emitting device are provided in the present invention. The proposed device includes a light source, an enclosure, and an integrated control circuitry coupled to the light source, enclosed in the enclosure and receiving a universal input voltage.

Abstract: A device and a method are provided for setting adjustment control for a device. The method comprises acts of generating a time base signal that is synchronized to an Alternating Current (AC) voltage, and generating a modulated AC voltage in response to an input control signal, which is referenced to the time base signal. The modulated AC voltage has a setting pattern that is formed by interrupting the AC voltage. The method further comprises acts of using the modulated AC voltage to change the device to a desired setting. The desired setting is determined from the corresponding setting pattern.

Abstract: An approach is provided for minimizing capacitance requirements of a filter capacitor of a charging device for an intermittent load. A method for charging an intermittent load that is able to pulse on and off periodically without compromising the utility of the load. The method comprises setting timestamps relating to a waveform of an input Alternating Current (AC) voltage. The timestamps are synchronized to the AC voltage and comprise on times and off times that turn the intermittent load off and on. The method further comprises charging the intermittent load during the on times. Therefore, the capacitance of the filter capacitor used for the intermittent load can be significantly reduced since there will be no voltage drop when the intermittent load has been turned off.

Abstract: An approach is provided for a power factor compensating method to compensate other electronic devices that use a common power source in order to improve power factor from the perspective of a power company. The other electronic device is a type of a non-linear load, and the method enables a compensator to receive a supply voltage from the power source commonly connected to the traditional electronic devices and disables a load of the compensator for a period. The period corresponds to a range that makes an overall supply current more proportional to the supply voltage.